Looking at Shapes: Open or Closed?

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Kids sometimes don't distinguish between a shape whose sides are closed and one that has an open side, but it's important for kids to understand that a square is not a square unless all its sides are connected. Help your first grader grasp this concept with this worksheet that asks him to classify each shape as open or closed. It's a good way to get him thinking about what makes a shape a shape.

Guided Lessons are a sequence of interactive digital games, worksheets, and other activities
that guide learners through different concepts and skills.
They keep track of your progress and help you study smarter, step by step.

Guided Lessons are digital games and exercises that keep track of your progress and help you study smarter, step by step.

First grade geometry covers basic shapes, as well as an introduction to 3D shapes. Our team of curriculum experts designed the following guided lesson, which provides an overview of first grade geometric concepts and gives kids lots of opportunities for practice. If your child needs more support in a different format, check out the suggested first grade geometry worksheets.

First grade geometry covers basic shapes, as well as an introduction to 3D shapes.